Mn$sup 56$ COINCIDENCE COUNTING FACILITY
A two-stage absolute counting facility for large liquid samples of aqueous Mn/sup 56/SO/sub 4/, primarily intended for better than 1% precision measurements of neutron source strengths by the manganese bath technique, is described. Two-liter samples are counted in a gamma - gamma coincidence arrangement that greatly improves long-term reproducibility at some sacrifice in counting statistics; this sacrifice is, however, lessened through a novel pulse- distribution scheme that allows fall utilization of the output of each detector channel. The system is calibrated on an absolute scale through another unit which counts aliquots of strongly activated samples mixed with liquid scintillator in a 4 pi BETA / gamma coincidence mode. The entire facility is designed to be readily adaptable to other radioisotope-counting requirements. (auth)
- Research Organization:
- Argonne National Lab., Ill.
- DOE Contract Number:
- W-31109-ENG-38
- NSA Number:
- NSA-17-041239
- OSTI ID:
- 4700429
- Report Number(s):
- ANL-6760
- Country of Publication:
- United States
- Language:
- English
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THE APPLICATION OF INTERNAL LIQUID SCINTILLATION COUNTING TO A 4$pi$-$beta$- $gamma$ COINCIDENCE METHOD FOR THE ABSOLUTE STANDARDISATION OF RADIOACTIVE NUCLIDES
ABSOLUTE MEASUREMENTS OF WEAK NEUTRON FLUXES
Absolute measurement of the sup 65 Cu(n,2n) sup 64 Cu, sup 64 Zn (n,p) sup 64 Cu and sup 56 Fe(n,p) sup 56 Mn cross sections at 14. 6 MeV
Technical Report
·
Fri Oct 30 23:00:00 EST 1959
·
OSTI ID:4286092
ABSOLUTE MEASUREMENTS OF WEAK NEUTRON FLUXES
Journal Article
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Sun Dec 31 23:00:00 EST 1961
· Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.)
·
OSTI ID:4817757
Absolute measurement of the sup 65 Cu(n,2n) sup 64 Cu, sup 64 Zn (n,p) sup 64 Cu and sup 56 Fe(n,p) sup 56 Mn cross sections at 14. 6 MeV
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1987
·
OSTI ID:5665723